Australian Standard AS1926.1-2012 outlines the non-climbable zones applicable to a pool barrier. The relevant section, described in this article, applies to pool barriers that are less than 1,800mm in height (which can be climbable on both sides). They do not apply to barriers that are in effect your neighbour’s fence (which has its own requirements under this Standard).
The following Non Climbable Zones (NCZs) shall be present on all barriers with a height less than 1800mm:
- NCZ 1 is a 900mm vertical plane on the outside face of a barrier
- NCZ 2 is a quadrant on the outside of a barrier created by a 900mm radius down from the top of NCZ 1 above
- NCZ 3 is a quadrant on the outside of a barrier created by a 900mm radius up from the top of the barrier
- NCZ 4 is required on all barriers with vertical openings 10-100mm in width and is a 900mm high by 300mm deep rectangular space on the inside of the barrier and shall align with NCZ 1
It should be noted that a barrier component/item/object on a barrier that would otherwise be climbable is non-climbable it its top surface is sloped at more than 60o to the horizontal plain.